87445217384 has 32 divisors (see below), whose sum is σ = 193427212800. Its totient is φ = 36267600960.

The previous prime is 87445217381. The next prime is 87445217429. The reversal of 87445217384 is 48371254478.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87445217381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25184099 + ... + 25187570.

It is an arithmetic number, because the mean of its divisors is an integer number (6044600400).

Almost surely, 2^87445217384 is an apocalyptic number.

It is an amenable number.

87445217384 is an abundant number, since it is smaller than the sum of its proper divisors (105981995416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87445217384 is a wasteful number, since it uses less digits than its factorization.

87445217384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50371713 (or 50371709 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 53.

The spelling of 87445217384 in words is "eighty-seven billion, four hundred forty-five million, two hundred seventeen thousand, three hundred eighty-four".